Washington: Confirmed cases of coronavirus in the United States climbed to more than 530 by Sunday, with several states, including Oregon and California, having declared an emergency as the viral infection continues to spread rapidly across the globe, killing over 3,800 and infecting 109,000 others.
Health officials in Washington state, Oregon and California have identified cases among people who have not recently travelled to countries impacted by the outbreak nor come into contact with anyone known to be infected. Evidence suggests that the deadly virus, which originated in the Wuhan capital of the Hubei province in central China has spread undetected for weeks in Washington state.
The virus has reached some 30 US states, with two more deaths being reported in Washington both linked to a virus-hit care home near Seattle that has brought the nationwide toll to at least 21.
More than 100 countries have confirmed new cases of the COVID 19 while the World Health Organisation declared the situation as a 'public health emergency.'
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In response to the outbreak, the Trump administration imposed travel restrictions to countries impacted by the outbreak, including China, Iran, Italy and South Korea.